Under what situation shall engineers use jacking at one end only and from both ends in prestressing work?
During prestressing operation at one end, frictional losses will occur and the prestressing force decreases along the length of tendon […]
During prestressing operation at one end, frictional losses will occur and the prestressing force decreases along the length of tendon […]
In the event of high vertical loads combined with large angle of rotations, rubber bearings are undesirable when compared with
Under what situation should engineers use pot bearings instead of elastomeric bearings? Read Post »
In some cases, it may be due to the accumulation of dust and dirt. However, for the majority of such
For a bridge abutment to be supported on raking piles with different orientations, the movement between the ground and the
Should raking piles of a bridge abutment be placed under an embankment? Read Post »
The choice of sliding surface of bearings is of vital importance because the sliding surfaces generate frictional forces which are
Polytetrafluoroethylene (PTFE) is commonly used in sliding bearings. Why? Read Post »
To increase the strength of concrete, say from 40MPa to 80MPa, it definitely helps in improving the structural performance of
If wires/strands are stressed individually inside the same duct, then those stressed strand/wires will bear against those unstressed ones and
Basically, the results of compression test carried out by using cubes are higher than that by cylinders. In compression test,
For elastomeric bearing to function as a soft spring, the bearing should be allowed for bulging laterally and the compression
To determine the orientation of guided bearings, one should understand the movement of curved region of a prestressed bridge. Movement